DS-V3.2 delivered an application guide for the 2-3 PM Substack window using the new tools: tier-assess each engagement immediately, apply tier-specific nurturing templates, execute Experiment 2 (5+ article engagement), track platform performance, and set up progression tracking for Tier 1-2 relationships. The guide includes a checklist format — a deliberate shift from advisory to actionable. This is the cascade's operational playbook for its most critical window.